CERN Accelerating science

R&D and Studies

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Computation of Optics Distortions due to Beam-Beam Interactions in the FCC-hh / Goncalves Jorge, Patrik
CERN-THESIS-2016-317 -

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Computation of Linear Optics Distortions due to Head-on Beam-Beam Interactions in Hadron Colliders / Goncalves Jorge, Patrik
CERN-THESIS-2015-404 -

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Comparison of coaxial higher order mode couplers for the CERN Superconducting Proton Linac study / Papke, Kai (CERN) ; Gerigk, Frank (CERN) ; Van Rienen, Ursula (IAE)
Higher order modes (HOMs) may affect beam stability and refrigeration requirements of superconducting proton linacs such as the Superconducting Proton Linac, which is studied at CERN. Under certain conditions beam-induced HOMs can accumulate sufficient energy to destabilize the beam or quench the superconducting cavities. [...]
CERN-ACC-2017-0050.- Geneva : CERN, 2017 - 19 p. - Published in : Phys. Rev. Accel. Beams 20 (2017) 1-19 Fulltext: PDF;

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Lattice design and beam optics calculations for the new large-scale electron-positron collider FCC-ee / Haerer, Bastian
Following the recommendations of the European Strategy Group for High Energy Physics, CERN launched the Future Circular Collider Study (FCC) to investigate the feasibility of large-scale circular colliders for future high energy physics research [...]
CERN-THESIS-2017-073 - 182 p.

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The Future of Superconducting Technology for Particle Accelerators / Yamamoto, Akira (High Energy Accelerator Research Organization (JP))
Introduction: - Colliders constructed and operated - Future High Energy Colliders under Study - Superconducting Phases and Applications - Possible Choices among SC Materials Superconducting Magnets and the Future - Advances in SC Magnets for Accelerators - Nb3Sn for realizing Higher Field - NbTi to Nb3Sn for realizing High Field (> 10 T) - HL-LHC as a critical milestone for the Future of Acc [...]
- 2015. - 56 p.
Full text

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Considerations on a Cost Model for High-Field Dipole Arc Magnets for FCC / Schoerling, Daniel (CERN) ; Durante, Maria (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR)) ; Lorin, Clement (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR)) ; Martinez, Teresa (CIEMAT) ; Ruuskanen, Janne (Tampere University) ; Salmi, Tiina (Tampere University) ; Sorbi, Massimo (INFN Milano) ; Tommasini, Davide (CERN) ; Toral, Fernando (CIEMAT)
In the frame of the European Circular Collider (EuroCirCol), a conceptual design study for a post-Large Hadron Collider (LHC) research infrastructure based on an energy-frontier 100 TeV circular hadron collider [1]–[3], a cost model for the high-field dipole arc magnets is being developed. The aim of the cost model in the initial design phase is to provide the basis for sound strategic decisions towards cost effective designs, in particular: (A) the technological choice of superconducting material and its cost, (B) the target performance of Nb3Sn superconductor, (C) the choice of operating temperature (D) the relevant design margins and their importance for cost, (E) the nature and extent of grading, and (F) the aperture’s influence on cost. [...]
CERN-ACC-2017-0027.- Geneva : CERN, 2017 - Published in : : 27 (2017) , no. 4 Fulltext: PDF;

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Physics at its limits / Mangano, Michelangelo (CERN) ; Azzi, Patrizia (Universita e INFN, Padova (IT)) ; D'ONOFRIO, Monica (University of Liverpool) ; Mccullough, Matthew Philip (CERN)
A 100km-circumference collider would address many of the outstanding questions in modern particle physics and secure our exploration of the microscopic world for generations..
CERN-ACC-2017-0026.- Geneva : CERN, 2017 - Published in : : 57 (2017) , no. 4, pp. 34-40 Fulltext: PDF;

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Requirements and constraints of EIR design option on WP2, WP4, WP5: Milestone M3.3 / Seryi, Andrei (University of Oxford (GB))
In this document we will review the design task of the WP3 (EIR), namely EIR optics (task 1), Machine Detector Interface (task 2), and Beam-Beam effects (task 3) and map the related challenges into the constraints and requirements for the other work packages – arc design (WP2), cryogenic beam vacuum (WP4) and magnet design (WP5). We will also include a section on how the EIR WP3 constraints and design optimization issues may affect the design of the Experimental Detector (this is outside the scope of EuroCirCol, but is one of the key activity area of FCC-hh community design efforts) [...]
CERN-ACC-2017-0022.- Geneva : CERN, 2017 Fulltext: PDF;

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Future Circular Collider Study FCC-he Baseline Parameters / Bruning, Oliver (CERN) ; Jowett, John (CERN) ; Klein, Max (University of Liverpool (GB)) ; Pellegrini, Dario (CERN) ; Schulte, Daniel (CERN) ; Zimmermann, Frank (CERN)
Initial considerations are presented on the FCC-he, the electron-hadron collider con guration within the Future Circular Collider study. This note considers arguments for the choice of the electron beam energy based on physics, ep scattering kinematics and cost. [...]
CERN-ACC-2017-0019.- Geneva : CERN, 2017 Fulltext: PDF;

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The crystal structure of (Nb0.75Cu0.25)Sn2 in the Cu-Nb-Sn system / Martin, Stefan (TU Bergakademie Freiberg) ; Walnsch, Alexander (TU Bergakademie Freiberg ; CERN) ; Nolze, Gert (Federal Institute for Materials Research and Testing (BAM), Berlin) ; Leineweber, Andreas (TU Bergakademie Freiberg) ; Leaux, Floriane (CERN) ; Scheuerlein, Christian (CERN)
During the processing of superconducting Nb3Sn wire, several intermediate intermetallic phases including a previously encountered Cu-Nb-Sn phase show up. The yet unknown crystal structure of this phase is now identified by a combination of different experimental techniques and database search to be of the hexagonal NiMg2 type with a proposed composition of about (Nb0.75Cu0.25)Sn2. [...]
CERN-ACC-2017-0017.- Geneva : CERN, 2017 - Published in : Intermetallics 80 (2017) 16-21 Fulltext: PDF;

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Future Circular Collider Documents (87)